wastedlocker | 887aac61771af200f7e58bf0d02cb96d9befa11deda4e448f0a700ccb186ce9d

General

Target

887aac61771af200f7e58bf0d02cb96d9befa11deda4e448f0a700ccb186ce9d.sample.exe
Size

1.1MB
MD5

6b20ef8fb494cc6e455220356de298d0
SHA1

763d356d30e81d1cd15f6bc6a31f96181edb0b8f
SHA256

887aac61771af200f7e58bf0d02cb96d9befa11deda4e448f0a700ccb186ce9d
SHA512

ef53b73a911a608439bf929fa66a66fbf015ed274735b91c1d3b08128b14d6514d5514157e541441b9de0827d068c8f514cfd24a3a52fecb2d09764c4fb3311a

Score

10^/10

wastedlocker cryptone discovery exploit packer ransomware

Malware Config

Signatures

WastedLocker
Ransomware family seen in the wild since May 2020.
ransomware wastedlocker

CryptOne packer 4 IoCs

Detects CryptOne packer defined in NCC blogpost.

cryptone packer

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\Diag:bin	cryptone
C:\Users\Admin\AppData\Roaming\Diag:bin	cryptone
C:\Windows\SysWOW64\Diag.exe	cryptone
C:\Windows\SysWOW64\Diag.exe	cryptone

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490
Executes dropped EXE 2 IoCs

Processes:

Diag:binDiag.exe

pid process

2696 Diag:bin
2076 Diag.exe
Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

2408 takeown.exe
3936 icacls.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

2408 takeown.exe
3936 icacls.exe

pid	process
2696	Diag:bin
2076	Diag.exe

pid	process
2408	takeown.exe
3936	icacls.exe

pid	process
2408	takeown.exe
3936	icacls.exe

Drops file in System32 directory 2 IoCs

Processes:

Diag:binattrib.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Diag.exe	Diag:bin
File opened for modification	C:\Windows\SysWOW64\Diag.exe	attrib.exe

Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exe

pid process

3932 vssadmin.exe

pid	process
3932	vssadmin.exe

NTFS ADS 1 IoCs

Processes:

887aac61771af200f7e58bf0d02cb96d9befa11deda4e448f0a700ccb186ce9d.sample.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Diag:bin	887aac61771af200f7e58bf0d02cb96d9befa11deda4e448f0a700ccb186ce9d.sample.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 3604 vssvc.exe
Token: SeRestorePrivilege 3604 vssvc.exe
Token: SeAuditPrivilege 3604 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	3604	vssvc.exe
Token: SeRestorePrivilege	3604	vssvc.exe
Token: SeAuditPrivilege	3604	vssvc.exe

Suspicious use of WriteProcessMemory 38 IoCs

Processes:

887aac61771af200f7e58bf0d02cb96d9befa11deda4e448f0a700ccb186ce9d.sample.exeDiag:binDiag.execmd.execmd.execmd.exe

description	pid	process	target process
PID 512 wrote to memory of 2696	512	887aac61771af200f7e58bf0d02cb96d9befa11deda4e448f0a700ccb186ce9d.sample.exe	Diag:bin
PID 512 wrote to memory of 2696	512	887aac61771af200f7e58bf0d02cb96d9befa11deda4e448f0a700ccb186ce9d.sample.exe	Diag:bin
PID 512 wrote to memory of 2696	512	887aac61771af200f7e58bf0d02cb96d9befa11deda4e448f0a700ccb186ce9d.sample.exe	Diag:bin
PID 2696 wrote to memory of 3932	2696	Diag:bin	vssadmin.exe
PID 2696 wrote to memory of 3932	2696	Diag:bin	vssadmin.exe
PID 2696 wrote to memory of 2408	2696	Diag:bin	takeown.exe
PID 2696 wrote to memory of 2408	2696	Diag:bin	takeown.exe
PID 2696 wrote to memory of 2408	2696	Diag:bin	takeown.exe
PID 2696 wrote to memory of 3936	2696	Diag:bin	icacls.exe
PID 2696 wrote to memory of 3936	2696	Diag:bin	icacls.exe
PID 2696 wrote to memory of 3936	2696	Diag:bin	icacls.exe
PID 2076 wrote to memory of 3296	2076	Diag.exe	cmd.exe
PID 2076 wrote to memory of 3296	2076	Diag.exe	cmd.exe
PID 2076 wrote to memory of 3296	2076	Diag.exe	cmd.exe
PID 3296 wrote to memory of 3504	3296	cmd.exe	choice.exe
PID 3296 wrote to memory of 3504	3296	cmd.exe	choice.exe
PID 3296 wrote to memory of 3504	3296	cmd.exe	choice.exe
PID 2696 wrote to memory of 3836	2696	Diag:bin	cmd.exe
PID 2696 wrote to memory of 3836	2696	Diag:bin	cmd.exe
PID 2696 wrote to memory of 3836	2696	Diag:bin	cmd.exe
PID 512 wrote to memory of 2408	512	887aac61771af200f7e58bf0d02cb96d9befa11deda4e448f0a700ccb186ce9d.sample.exe	cmd.exe
PID 512 wrote to memory of 2408	512	887aac61771af200f7e58bf0d02cb96d9befa11deda4e448f0a700ccb186ce9d.sample.exe	cmd.exe
PID 512 wrote to memory of 2408	512	887aac61771af200f7e58bf0d02cb96d9befa11deda4e448f0a700ccb186ce9d.sample.exe	cmd.exe
PID 3836 wrote to memory of 2128	3836	cmd.exe	choice.exe
PID 3836 wrote to memory of 2128	3836	cmd.exe	choice.exe
PID 3836 wrote to memory of 2128	3836	cmd.exe	choice.exe
PID 2408 wrote to memory of 1932	2408	cmd.exe	choice.exe
PID 2408 wrote to memory of 1932	2408	cmd.exe	choice.exe
PID 2408 wrote to memory of 1932	2408	cmd.exe	choice.exe
PID 3296 wrote to memory of 2396	3296	cmd.exe	attrib.exe
PID 3296 wrote to memory of 2396	3296	cmd.exe	attrib.exe
PID 3296 wrote to memory of 2396	3296	cmd.exe	attrib.exe
PID 3836 wrote to memory of 2712	3836	cmd.exe	attrib.exe
PID 3836 wrote to memory of 2712	3836	cmd.exe	attrib.exe
PID 3836 wrote to memory of 2712	3836	cmd.exe	attrib.exe
PID 2408 wrote to memory of 188	2408	cmd.exe	attrib.exe
PID 2408 wrote to memory of 188	2408	cmd.exe	attrib.exe
PID 2408 wrote to memory of 188	2408	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 3 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exeattrib.exe

pid process

2396 attrib.exe
2712 attrib.exe
188 attrib.exe

pid	process
2396	attrib.exe
2712	attrib.exe
188	attrib.exe

C:\Users\Admin\AppData\Local\Temp\887aac61771af200f7e58bf0d02cb96d9befa11deda4e448f0a700ccb186ce9d.sample.exe
"C:\Users\Admin\AppData\Local\Temp\887aac61771af200f7e58bf0d02cb96d9befa11deda4e448f0a700ccb186ce9d.sample.exe"
1⤵
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:512

C:\Users\Admin\AppData\Roaming\Diag:bin
C:\Users\Admin\AppData\Roaming\Diag:bin -r
2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2696

C:\Windows\system32\vssadmin.exe
C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
3⤵
- Interacts with shadow copies
PID:3932

C:\Windows\SysWOW64\takeown.exe
C:\Windows\system32\takeown.exe /F C:\Windows\system32\Diag.exe
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:2408

C:\Windows\SysWOW64\icacls.exe
C:\Windows\system32\icacls.exe C:\Windows\system32\Diag.exe /reset
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:3936

C:\Windows\SysWOW64\cmd.exe
cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Roaming\Diag" & del "C:\Users\Admin\AppData\Roaming\Diag"
3⤵
- Suspicious use of WriteProcessMemory
PID:3836

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
4⤵
PID:2128

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Users\Admin\AppData\Roaming\Diag"
4⤵
- Views/modifies file attributes
PID:2712

C:\Windows\SysWOW64\cmd.exe
cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Local\Temp\887aac61771af200f7e58bf0d02cb96d9befa11deda4e448f0a700ccb186ce9d.sample.exe" & del "C:\Users\Admin\AppData\Local\Temp\887aac61771af200f7e58bf0d02cb96d9befa11deda4e448f0a700ccb186ce9d.sample.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2408

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
3⤵
PID:1932

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Users\Admin\AppData\Local\Temp\887aac61771af200f7e58bf0d02cb96d9befa11deda4e448f0a700ccb186ce9d.sample.exe"
3⤵
- Views/modifies file attributes
PID:188

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3604

C:\Windows\SysWOW64\Diag.exe
C:\Windows\SysWOW64\Diag.exe -s
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2076

C:\Windows\SysWOW64\cmd.exe
cmd /c choice /t 10 /d y & attrib -h "C:\Windows\SysWOW64\Diag.exe" & del "C:\Windows\SysWOW64\Diag.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3296

C:\Windows\SysWOW64\choice.exe
choice /t 10 /d y
3⤵
PID:3504

C:\Windows\SysWOW64\attrib.exe
attrib -h "C:\Windows\SysWOW64\Diag.exe"
3⤵
- Drops file in System32 directory
- Views/modifies file attributes
PID:2396

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

File Deletion

2

T1107

File Permissions Modification

1

T1222

Hidden Files and Directories

1

T1158

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2

T1490

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Downloads

C:\Users\Admin\AppData\Roaming\Diag:bin
MD5
6b20ef8fb494cc6e455220356de298d0

SHA1
763d356d30e81d1cd15f6bc6a31f96181edb0b8f

SHA256
887aac61771af200f7e58bf0d02cb96d9befa11deda4e448f0a700ccb186ce9d

SHA512
ef53b73a911a608439bf929fa66a66fbf015ed274735b91c1d3b08128b14d6514d5514157e541441b9de0827d068c8f514cfd24a3a52fecb2d09764c4fb3311a

Download Submit
C:\Users\Admin\AppData\Roaming\Diag:bin
MD5
6b20ef8fb494cc6e455220356de298d0

SHA1
763d356d30e81d1cd15f6bc6a31f96181edb0b8f

SHA256
887aac61771af200f7e58bf0d02cb96d9befa11deda4e448f0a700ccb186ce9d

SHA512
ef53b73a911a608439bf929fa66a66fbf015ed274735b91c1d3b08128b14d6514d5514157e541441b9de0827d068c8f514cfd24a3a52fecb2d09764c4fb3311a

Download Submit
C:\Windows\SysWOW64\Diag.exe
MD5
6b20ef8fb494cc6e455220356de298d0

SHA1
763d356d30e81d1cd15f6bc6a31f96181edb0b8f

SHA256
887aac61771af200f7e58bf0d02cb96d9befa11deda4e448f0a700ccb186ce9d

SHA512
ef53b73a911a608439bf929fa66a66fbf015ed274735b91c1d3b08128b14d6514d5514157e541441b9de0827d068c8f514cfd24a3a52fecb2d09764c4fb3311a

Download Submit
C:\Windows\SysWOW64\Diag.exe
MD5
6b20ef8fb494cc6e455220356de298d0

SHA1
763d356d30e81d1cd15f6bc6a31f96181edb0b8f

SHA256
887aac61771af200f7e58bf0d02cb96d9befa11deda4e448f0a700ccb186ce9d

SHA512
ef53b73a911a608439bf929fa66a66fbf015ed274735b91c1d3b08128b14d6514d5514157e541441b9de0827d068c8f514cfd24a3a52fecb2d09764c4fb3311a

Download Submit
memory/188-136-0x0000000000000000-mapping.dmp

Download
memory/512-115-0x0000000000400000-0x0000000000516000-memory.dmp

Filesize
1.1MB

Download
memory/512-114-0x0000000000580000-0x000000000062E000-memory.dmp

Filesize
696KB

Download
memory/1932-133-0x0000000000000000-mapping.dmp

Download
memory/2076-126-0x0000000000DB0000-0x0000000000DC0000-memory.dmp

Filesize
64KB

Download
memory/2076-127-0x0000000000400000-0x0000000000516000-memory.dmp

Filesize
1.1MB

Download
memory/2128-132-0x0000000000000000-mapping.dmp

Download
memory/2396-134-0x0000000000000000-mapping.dmp

Download
memory/2408-131-0x0000000000000000-mapping.dmp

Download
memory/2408-122-0x0000000000000000-mapping.dmp

Download
memory/2696-120-0x0000000000520000-0x000000000066A000-memory.dmp

Filesize
1.3MB

Download
memory/2696-121-0x0000000000400000-0x0000000000516000-memory.dmp

Filesize
1.1MB

Download
memory/2696-116-0x0000000000000000-mapping.dmp

Download
memory/2712-135-0x0000000000000000-mapping.dmp

Download
memory/3296-128-0x0000000000000000-mapping.dmp

Download
memory/3504-129-0x0000000000000000-mapping.dmp

Download
memory/3836-130-0x0000000000000000-mapping.dmp

Download
memory/3932-119-0x0000000000000000-mapping.dmp

Download
memory/3936-124-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads